package adv328;

import java.util.*;

/**
 * @author oldliu
 * @since 1.0
 */
public class LinkListDemo {
    public static void main(String[] args) {
        //Link addFirst addLast
        //removeFirst  removeLast
        List l=new LinkedList();
        l.add("nihao");
        //l.addFirst("老虎");

    }
}
